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Free Speaker Wire with Enclosure Purchase

Get a Free roll of Belva 12 Gauge Speaker Wire when you purchase a Belva BBX Subwoofer Enclosure. Simply Click the "Add Both to Cart" button to the right. This offer cannot be combined with any other coupons or offers.

Speaker Box / Enclosure Specifications

This is the shape of the enclosures cutout hole and defines the style of subwoofer that can be installed.

Round / Circle

Box Type

Represents the style of the enclosure. Be sure to purchase the appropriate enclosure type and internal volume that will be compatible with your subwoofer's recommendation.

Sealed - Sealed boxes are those that have no holes or vents in it. The only hole in a sealed box is where the subwoofer is installed. Smaller sealed boxes require more power than a larger sealed box. They provide a tight, accurate bass, while the larger sealed enclosures provide a "boomier" and louder bass.

Ported / Vented - Ported/Vented Enclosures provide an even boomier, louder bass, but less accurate then a small, sealed box. Ported enclosures typically require more airspace per sub and also less power output from an amplifier to perform correctly.

Bandpass - Bandpass enclosures make subwoofers perform efficiently, but loose. The bass is not as "boomy" as a ported enclosure nor as punchy as a sealed enclosure. Bandpass enclosures work well with lower to mid-level subwoofers.

Vented / Ported

Number of Subs/Speakers

This value represents the number of speakers or subwoofers that the enclosure accommodates.

2

Box Style/Shape

The box style or shape refers to the actual shape of the box. Square and rectangular boxes are straight-edged boxes on all sides, whereas hatchback and truck style enclosures feature an angled front or back design that allows for installation in places short on depth such as single cab pickup trucks. You can also use such enclosures in hatchback cars or other vehicles where space is a premium. Tube and cylinder shaped boxes were made popular by Bazooka and are a great option for those looking for a nice amount of bass without sacrificing lots of space. They may even fit in locations that slim truck boxes cannot fit in. If the enclosure is vehicle specific, we encourage you to read the product description to find out which vehicles the enclosure is made for.

Square/Rectangle

Cutout Diameter or Length

The actual diameter of the hole in the subwoofer box. Length is the measured length per side of a square subwoofer or speaker opening.

11.25"

Maximum Speaker Depth

Your subwoofer or speaker must not exceed this dimension in order to properly mount in this enclosure.

This is the total air space inside each chamber of the empty subwoofer enclosure. By matching this value with the recommended air space of the subwoofer, you will be able to know if the subwoofer will match this box.

1.85 cubic feet

Height

The height of the item, measured from top to bottom, in inches.

16.25"

Width

The width of the item from left to right (side-to-side) measured in inches.

35"

Depth

The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.

16"

Wood Thickness

The thickness of the wood the enclosure is made of, measured in inches.

3/4"

Number of Terminals

The number of terminals the enclosure has. Each terminal represents 1 positive and 1 negative.

2

Terminal Type

Spring clip terminals work best with bare wire connections with small-gauge speaker wire, or pin-type connectors.

Binding post terminals are a sturdier, more versatile type of speaker terminal. Because binding post terminals are are threaded, you can tighten them down against the wire or connector for a tight, clean connection. The most popular style of binding post terminals is known as a "5-way binding post". This type can accept bare wire, or any of the common speaker wire connectors. Binding posts with the option to be used with banana clips are even more versatile

Spring posts are a hybrid of the two. Instead of using a thread and "screwing" them tight, they use a spring to allow the wire to fit and tighten against the terminal.

Spring posts (banana clip ready)

Box Exterior Color

The color of the enclosure's exterior/outer finish.

Blue

Box Finish

The material used on the outside of the box. Most boxes are carpeted to prevent exterior scratches; however vinyl is popular as it can often be color-matched to a near exact look of your leather factory interior.

Carpet

Port Details

Number of Ports

The number of ports the enclosure has.

2

Tuning Frequency

35 Hz

Port Diameter

The outside diameter of the port. Check the product's owner's manual for the recommended port diameter for your sub.

12.5"

Port Length

The length of the included port tubes. Many tubes are cardboard and may be cut to the length recommended by the sub's manufacturer. Check your product's owner's manual for the recommended port length for your sub.

bought it because it matched the color of my truck, kept it because its wonderful. some ported boxes seem to suck with the high range, but this box has excellent range. recommend to anyone, great value.

Product Summary

Why shop Sonic?

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Customer Testimonial

“

I hooked the Hifonics BRX1200.1D up to my old 12's and it's pounding the guts out of them. I give Sonicelectronix.com and the products I've ordered 5 star's across the board. I will continue to buy my electronics from Sonicelectronix.com. Thank you Sonicelectronix.com____

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Belva BBX212BL (BLUE)

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